Historical Volatility (Parkinson) (120-Day)

Historical Volatility (Parkinson): The past volatility of the security over the selected time frame, calculated using the high and low prices on each trading day.

Hi-Crush Inc. (HCR) had 120-Day Historical Volatility (Parkinson) of 1.8491 for 2020-07-13.

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Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2020-07-13

Volatility Metrics
Historical Volatility (Close-to-Close)	2.3901
Historical Volatility (Parkinson)	1.8491
Implied Volatility (Calls)	--
Implied Volatility (Puts)	--
Implied Volatility (Mean)	--
Put-Call Implied Volatility Ratio	--
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.0670